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Futemma, Akira; Sanada, Yukihisa; Kawasaki, Yoshiharu*; Iwai, Takeyuki*; Hiraga, Shogo*; Sato, Kazuhiko*; Haginoya, Masashi*; Matsunaga, Yuki*; Kikuchi, Hikaru*; Ishizaki, Azusa; et al.
JAEA-Technology 2020-019, 128 Pages, 2021/02
JAEA-Technology-2020-019.pdf:15.75MB
A large amount of radioactive material was released by the nuclear disaster of Fukushima Daiichi Nuclear Power Station (FDNPS), Tokyo Electric Power Company, caused by the Great East Japan Earthquake and the following tsunami on March 11, 2011. After the nuclear disaster, airborne radiation monitoring using manned helicopter has been utilized to grasp rapidly and widely the distribution of the radioactive materials around FDNPS. We prepare the data of background radiation dose, geomorphic characteristics and the controlled airspace around nuclear facilities of the whole country in order to make effective use of the monitoring technique as a way of emergency radiation monitoring and supply the results during accidents of the facilities. Furthermore, the airborne radiation monitoring has been conducted in Integrated Nuclear Emergency Response Drill to increase effectiveness of the monitoring. This report is summarized that the knowledge as noted above achieved by the aerial radiation monitoring around Higashidori nuclear power station, the nuclear fuel reprocessing plant in Rokkasho village and Shika nuclear power station, the full details of the aerial radiation monitoring in Integrated Nuclear Emergency Response Drill in the fiscal 2019. In addition, examination's progress aimed at introduction of airborne radiation monitoring using unmanned helicopter during nuclear disaster and the technical issues are summarized in this report.
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Isotope News, 0(396), p.49 - 55, 1993/07
no abstracts in English
Nakamura, Yoshihide
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no abstracts in English
Nakamura, Yoshihide
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no abstracts in English
Nagai, Haruyasu
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no abstracts in English
Uchida, Takenobu; Nakamura, Yoshihide
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Regarding the "plant status", "event progress forecast", "accident settlement strategy", "strategy progress", etc. in the event of a nuclear facility disaster, the licensee will smoothly share information with the Nuclear Regulation Authority ERC. We are working to improve our response capabilities through disaster drills so that we can promptly respond to inquiries from the agency ERC. In order to contribute to the improvement of the ability to respond, I will report on the content that I worked on for the following issues. [Issue 1] Shortening the time lag until the information sent by the local emergency headquarters is shared with the NRA, [Issue 2] Reduction of misperceptions of event progress